#include<bits/stdc++.h>
using namespace std;
int main()
{
    freopen("duel1.in","r",stdin);
    freopen("duel1.out","w",stdout);
    int n,r,m[100001]={0},k=0;
    cin>>n;
    for(int i=0;i<n;i++){
        cin>>r;
        k=max(k,++m[r]);
    }
    cout<<k;
    fclose(stdin);
    fclose(stdout);
    return 0;
}
